Neil Young divorcing Pegi Young after 36 years

Young filed papers to end his marriage on July 29 in San Mateo, according to Rolling Stone. A hearing is scheduled for Dec. 12.

Inspired by their son Ben, who suffers from cerebral palsy, the pair helped create the Bridge School in 1986 in Hillsborough. The school helps children with severe speech and physical impairments. To raise money for the school, Young hosts the annual Bridge School benefit at the Shoreline Amphitheatre in Mountain View, where he and Pegi -- his frequent musical collaborator -- perform alongside a star-studded lineup.

Neil Young and Pegi Young arrive at the 2012 MusiCares Person of the Year Tribute to Paul McCartney, held at the Los Angeles Convention Center on February 10, 2012 in Los Angeles. (Photo by Kevin Winter/Getty Images For The Recording Academy)

Pegi, whom Young met when she was working as a waitress near his ranch and has performed as a background for him for decades, was the inspiration of a number of Young's songs, including "Such a Woman," "Unknown Legend" and "Once an Angel," according to Rolling Stone.

Both were scheduled to play this year's Farm Aid on Sept. 13 in Raleigh, North Carolina. Pegi Young's name was recently removed from the lineup.